Tim Armstrong Books

Colour Perception

By Tim Armstrong

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Cat Who Drank Too Much

By Leclair Bissell, Richard Watherwax

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When your circumstances challenge the promises of God

By Tim Armstrong

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Put Off Put On

By Tim N Armstrong

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Harassment and diversity

By Tim Armstrong, Bruce Sarchet

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(Producer) This program teaches managers or supervisors how to recognize and prevent illegal harassment, and how to respond quickly and appropriately if there is a complaint of harassment.

American Bodies

By Tim Armstrong

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American Bodies

By Tim Armstrong

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Haunted Hardy

By Tim Armstrong

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.